ERP实施方法论研究

在对ERP实施研究现状分析及实施方法论比较的基础上，运用系统方法论，特别是霍尔模型方法论、WSR方法论，对ERP实施方法论进行了明确的内涵界定，并建立了ERP实施方法论的逻辑步骤模型，以及三维框架模型，最后论述了ERP实施方法论的详细过程，并通过实际案例验证了ERP实施方法论的有效性和可用性。     

泛系兵法研究(Ⅴ):经济·人才·诡道·社会·风险

本文论述与兵法、权谋、对策、决策、运筹有关的经济学、风险学、诡道学、人才学与社会学的泛系研究以及权谋运筹的白道黑道理法。具体内容包括前言;泛系新理法;泛系经济学与泛系社会学的一些理法;大经济的泛系网络;泛系相对论:乏定客观·层次排序·风险观控;泛系决策;军工与高技术投资释例分析。本研究系列也是发展中的泛系对策论、泛系经济学的论纲。     

工程设计院环境中的PDM项目实施研究

产品数据管理技术正成为企业新一轮的应用热点,尽管最初发源于制造业,但其原理同样适用于包括建筑工程、民用设施等行业在内的其它应用领域。本文结合我们自行开发的一套ＰＤＭ系统——ＯｎＤｏｃｓ系统,在某市政工程设计院中的成功实施的经过,讨论了该项技术及系统的特点以及在工程设计院环境中实施的方法学,有关结论和经验同样可用于其它领域中的应用实施。     

提高废弃线路板两步生物浸出金回收率的优化

采用两步生物浸出法浸提废弃线路板中的金属。第一步利用氧化亚铁硫杆菌浸提废弃线路板中的铜并探讨了其影响因素,第二步选用紫色色杆菌浸提第一步处理后残留物中的金,在单因素试验基础上,以金的浸出率为响应值,采用Box-Behnken(BB)设计,利用Design-Expert软件对响应值进行4因素3水平的多元二次回归拟合分析,从而提高浸金率。结果显示,氧化亚铁硫杆菌在pH=2.0、Fe2+浓度44.3g/L,粒径75～147μm,粉末添加量0.5g的条件下,4d能提取99%的铜;在第二步中,使用响应面确定最佳浸出条件为:pH=10.5、甘氨酸4.02g/L、硫酸镁5.67 mg/L、温度31.0℃,金浸出率可达72.58%。     

One-step process for production of biodiesel from Jatropha curcas L. seeds： Optimization using Response Surface Methodology （RSM）

Jatropha curcas L. （JCL） seeds were extracted and transesterified in-situ using supercritical methanol extraction in the absence of catalyst at different temperatures （200-280℃） and pressures （8-12 MPa）, and at a fixed reaction time of 30 min with seeds-to-methanol ratio of 1：40 w/v. Design of experiment approach using five-level-two-factors design of Response Surface Methodology （RSM） was used to observe the effect of two independent variables i.e. temperature and pressure and the percent of biodiesel yield which required 13 runs. For optimization of the variables, Central Composite Rotatable Design （CCRD） was used for regression analysis and analysis of variance （ANOVA）. The optimize conditions suggested by RSM were at T = 280℃ and P = 12.04 MPa. The predicted and experimental biodicsel yields were found to be 56.8% and 59.9%, respectively, with relatively small deviation errors of 1.59%.     

Optimization of adhesive strength to plywood of gelatin processed from dorsal skin of yellowfin tuna (<Emphasis Type="Italic">Thunnus albacares</Emphasis>)

Gelatin from yellowfin tuna (Thunnus albacares) dorsal skin was optimized for adhesive strength to plywood using surface response methodology of a central composite design with a dependent variable of adhesive strength (Y, kg _f /cm²) and two independent variables of gelatin concentration (X₁, %) and hardening time (X₂, hrs). From the above design, a maximum adhesive strength of 49.84 kg _f /cm² was obtained under the optimal treatment condition of 15.85% gelatin concentration and 25.68 hr hardening time. The adhesive strength under optimum conditions was 50.93 kg _f /cm². The adhesive strength of the tuna gelatin was shown to be superior to that of bovine and porcine gelatins which had adhesive strengths of 34.75 and 34.9 kg _f /cm², respectively.     

Optimization of biodiesel production from trap grease via acid catalysis

As a kind of waste collected from restaurants, trap grease is a chemically challenging feedstock for biodiesel production for its high free fatty acid (FFA) content. A central composite design was used to evaluate the effect of methanol quantity, acid concentration and reaction time on the synthesis of biodiesel from the trap grease with 50% free fatty acid, while the reaction temperature was selected at 95 °C. Using response surface methodology, a quadratic polynomial equation was obtained for ester content by multiple regression analysis. Verification experiments confirmed the validity of the predicted model. To achieve the highest ester content of crude biodiesel (89.67%), the critical values of the three variables were 35.00 (methanol-to-oil molar ratio), 11.27 wt% (catalyst concentration based on trap grease) and 4.59 h (reaction time). The crude biodiesel could be purified by a second distillation to meet the requirement of biodiesel specification of Korea.     

城乡统筹规划理论的科学建构与城市化的中国模式

本文报告和阐述了对城乡统筹规划理论的科学建构。对与理论科学性相关及衍生的重要问题,包括科学知识与科学研究的本质、城市化与农村现代化的中国模式以及现状相关研究的误区、方法论根源与潜在危险,一并进行了讨论。     

云南丘北辣椒中辣椒素酶法提取条件的优化

利用响应面分析法优化了酶法提取辣椒素的条件,在统计分析后得出了果汁专用复合酶作用于云南丘北辣椒提取辣椒素的酶解方程,精确地预测了辣椒素的提取率。     

三七茎叶总皂苷提取工艺及抗氧化活性研究

目的 为高效提取三七茎叶总皂苷,建立并优化了乙醇热回流提取三七总皂苷的工艺条件。方法 以人参皂苷Rb3的提取率和纯度为指标,通过部分因子实验设计和中心组合实验设计,对乙醇浓度、液料比、提取时间、提取温度4个因素进行考察,筛选最佳提取工艺参数,并进一步用c对四种不同提取方法所获三七皂苷的抗氧化效果进行评价。结果 最佳提取工艺参数为乙醇浓度50%、液料比10.7 ml/g、提取时间1 h和提取温度60 ℃,该提取方法所获皂苷的抗氧化效果高于其它提取方法。结论 该工艺流程在保证获得较高人参皂苷Rb3纯度和含量的基础上,具有经济、快速、高效的特点,为后续三七茎叶的进一步开发奠定了理论基础。